HVAC stands for Heating, Ventilation, and Air Conditioning. HVAC contractors install, maintain, and repair these systems in commercial, industrial, and institutional facilities.

What union represents HVAC workers?

The International Association of Sheet Metal, Air, Rail and Transportation Workers (SMART) represents HVAC and sheet metal workers across North America.

Do HVAC contractors need a license?

HVAC contractors typically need licenses for refrigeration work (EPA Section 608 certification) and may need general contractor licenses or HVAC specialty licenses depending on jurisdiction. Requirements vary by state and province.

SEER (Seasonal Energy Efficiency Ratio) measures the cooling efficiency of air conditioning systems. Higher SEER ratings indicate better efficiency and lower operating costs. Modern systems typically have SEER ratings of 14-25.

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